21. We should have ___sense of responsibility to do something to help __poor whenever they are in___ trouble.
A. a；不填; the B. a; the ; 不填 C. 不填; the; the D. a; the; the
22. He sat in the classroom with his eyes _____ on the blackboard.
A. fixing B. fixed C. were fixed D. were fixing
23. This team ____ 5 boys and 5 girls is a legend.
A. making up of B. consisting of C. consists of D. is made up of
